Finding the Third Proportional to 5,961,886 and 12,931,978

Step by Step Solution

1. Step 1: Write the proportion equation
   5,961,886 : 12,931,978 = 12,931,978 : x
2. Step 2: Convert to fraction form
   5,961,886/12,931,978 = 12,931,978/x
3. Step 3: Cross multiply
   5,961,886x = 12,931,978 × 12,931,978
4. Step 4: Simplify right side
   5,961,886x = 167,236,054,992,484
5. Step 5: Solve for x
   x = 167,236,054,992,484/5,961,886
6. Step 6: Final answer
   x = 28,050,864.27